HELP A GIRL OUT

Kyaunna

my fiance and I have been not ttc but not preventing it either. I get my period every 3months, 2 off then the third I get it. it's pretty regular that way anyways. anyways I found some pills that had good reviews and was going to get them. I just had my period June 3rd - 9th which means I shouldn't get the other till the beginning of September. But my nipples are sore and I'm breaking out bad. (side note I almost never have break outs not like this) should I get a pregnant test? like I said waiting till September for my period not to come is quite some time.