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Contamination? https://en.m.wikipedia.org/wiki/Contamination_(film)
Don't think so, good guess though. The only scenes I remember were in rural America (or looked like it). I remember the guy holding the melon (or whatever it was), picking up a knife intending to cut the thing open, which the viewer already knew had an alien/alien egg in it. But he's distracted and it never gets cut open. Then a woman has it given to her afterward. When it attacks her she loses control of the car and it crashes into a river or lake.
DW
Did a little more research and it turns out it was The Kindred (1987). I badly misremembered it as it was a horror rather than sci-fi.
DW
This has been bothering me for a number of years. I remember a film on TV featuring aliens invading or reaching Earth and one growing/gestating inside a watermelon or some other big fruit. A man was going to cut into it but was distracted and never actually did it in one scene so the alien was never discovered. It was then given to a woman who put it in the back of her car to drive somewhere. Of course while she is driving the creature hatches from the melon (if it was one) and attacks her with tentacles causing a crash. I never found out the name of the film and have never seen it on any channel since!
If I remember correctly it looked like a 70s/80s film though could've been later.