Can BCP's and other forms of hormone regulators mess up your system? YES! Especially if you already have issues with hormone levels (I.e. heavy periods, thyroid issues, adrenal issues, "unexplained infertility", etc.) Those are all signs that something in your body is not balanced. I was told for years that my hormone levels were "normal", yet I had "unexplained infertility". I always felt run down and had heavy painful periods. So my doc at the time suggested I go on the pill to regulate everything and reduce my monthly bleeding and cramps. I tried Yasmin/Yaz. It did help reduce my bleeding and cramps. But it gave me all kinds of crazy side effects. It sent my thyroid and adrenals into overload. After 3 months of taking it, I could barely crawl out of bed. It basically gave me symptoms of severe depression and anxiety, yet I knew I wasn't depressed. I knew there was something chemically off and I needed to heal my body. It took about 2 years after I stopped taking it for my body to get back to normal using homeopathic remedies under a trained Naturopath. I call those 2 years the Dark Years of my life because the side effects were so bad.
So if I were you, I would google "Negative side effects of (name of BCP)" and see what comes up. I wish I would have done so before I started taking it. I found a site where over 300 women reported similar symptoms as mine while taking Yaz. I am sorry I do not remember the name of the site.
It's now been 4 years since I got off the pill. I have been battling keeping my thyroid and adrenal levels normal ever since. I am not saying for sure that being on the pill caused all of it, but it definitely was the tip of the iceberg that sent me over the top initially.
FYI: At the 2 year mark of getting off the pill and naturally healing my body, I got preggo with my daughter the good old fashioned way. She is our surprise bio baby (my oldest is adopted).
So do your research on this, and then go with what your gut instincts are telling you. For some, BCPs work great, for others like me they are a nightmare.
Also it isn't weird for a married couple to use condoms. We did for several years until I got my hysterectomy since I couldn't tolerate any of the hormone regulators and hubby didn't want to get a vasectomy.