Breast lump!!!

I found a hard lump in one of my breasts last week. It kind of has no particular shape but would be around one maybe 2 cm in length and width and moves just a little bit when I put pressure on it. I went to my GP and after one fast pass over it and way more time studying the other breast she determined it was likely fibroid tissue. Honestly I feel like she barely examined it at all and I don’t feel any better about things. It’s so distinct and I have never had anything like it before- of course my mind goes to the worst. But I have read weird breast lumps can be common in pregnancy? Has anyone else got a weird lump in their breast during pregnancy and all was ok? Worried...