I had sex with a girl I dated for a couple of months recently. She asked me to cum inside her and that she wouldn't get pregnant. She also told me she had an IUD. I told her I wasn't comfortable with that and wanted a condom. Later on, while we were spooning, she could feel that I was aroused, grabbed my unprotected penis and put it in her vagina. We ended up having sex and for days I was terrified I had just been tricked into impregnating her. She later apologized to me via text and acknowledged she instigated everything. I took screenshots of them if she tried to claim I sexually assaulted her. It should be noted that she does have some severe emotional problems and suffers from depression. I had relations with her one time after this and while she didn't do it again, I feel once is unacceptable. Did I overreact? And am I wrong to feel sexually manipulated?