Period on Birth Control

So I went on birth control, specifically Lo Loestrin Fe, at the end of February and since then I haven't had a normal period. In April I want to say I had some red discharge and in July I experienced it again but it lasted an extra day or so. Before I went on birth control I typically didn't have very heavy periods, they were regular and they usually lasted 4 days.

My boyfriend and I started having sex in the middle of February. We wore condoms until the middle of May and then we stopped using them. The condom broke one time in April but even though I was on birth control I took the morning after pill the next day to be safe. Since we stopped using condoms I make him pull out and he's typically very on point with it. I take my birth control on time everyday and have never missed a day but 3-4 times I have been a few hours late taking it. I never skip over the "period" pill dats either.

I've taken 2 pregnancy tests one in late April and the other in June I want to say.

Anyways, anyone have an idea as to what is going on? I just want to make sure nothing strange is happening. I have really bad anxiety about potential possibilities, i. e. pregnancy, and I know I'm probably wording for nothing but I just want to make sure!

Thank you!